甘蓝型油菜矮秆新种质LSW2018矮缩性状遗传规律研究  

Inheritance of dwarf character in a new Brassica napus germplasm LSW2018

作　　者：王转转 李超[2] 黄莎 唐容 王璐璐[2] 杨斌[2] 杨元雨 王芳 王敏[2,3] 赵德刚 曾晓芳 张瑞茂[2] WANG Zhuan-zhuan;LI Chao;HUANG Sha;TANG Rong;WANG Lu-lu;YANG Bin;YANG Yuan-yu;WANG Fang;WANG Min;ZHAO De-gang;ZENG Xiao-fang;ZHANG rui-mao(Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education),College of Life Sciences/Institute of Agro-Bioengineering,Guizhou University,Guiyang 550025,China;Guizhou Academy of Agricultural Sciences/Oil Crops Research Institute/Rape Research Institute/Guizhou Plant Conservation Technology Center,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China;School of Life Science,Guizhou Normal University,Guiyang 550025,China)

机构地区：[1]贵州大学生命科学学院/农业生物工程研究院山地植物资源保护与种质创新教育部重点实验室,贵州贵阳550025 [2]贵州省农业科学院/油料研究所/油菜研究所/贵州省植物保育技术应用工程研究中心,贵州贵阳550006 [3]贵州师范大学生命科学学院,贵州贵阳550025

出　　处：《中国油料作物学报》2022年第1期7-13,共7页Chinese Journal of Oil Crop Sciences

基　　金：国家自然科学基金(32060464);贵州省人才基地(RCJD2018-14);贵州省农业科学院项目(黔农科院种质资源[2021]05号);贵州省油菜现代农业产业技术体系建设项目(GZCYTX2021-08);贵州省高层次(十层次)创新型人才培养(黔科合平台人才[2016]4003号)。

摘　　要：甘蓝型油菜LSW2018苗期具有典型的“矮缩”性状,植株矮秆,茎秆粗壮,抗倒性极强,是理想的矮秆种质资源,适宜机械化作业,具有重要的利用价值。为挖掘LSW2018的育种优势,研究其“矮缩”性状的遗传规律,选用119份正常高秆甘蓝型油菜品种(系)、12份白菜型油菜品种(系)、6份芥菜型油菜品种(系)与LSW2018(P1)构建正反交组合,对其F_(1)、F_(2)、F_(3)及aBC_(1)、bBC_(1)等世代群体进行分析,遗传研究表明,矮缩性状由1对显性基因控制,株高具有主基因+多基因遗传效应,不存在细胞质效应。LSW2018,a Brassica napus germplasm,has typical"dwarf"character at seedling stage,and the plant is short with thick stem and strong lodging resistance.As an ideal dwarf germplasm resource,LSW2018 is es‐pecially suitable for mechanized operation and has important utilization value.In order to explore the breeding ad‐vantages,and study the inheritance of dwarf character of LSW2018,119 normal high-stalk Brassica napus cultivars(lines),12 Brassica rapa cultivars(lines)and 6 Brassica juncea varieties(lines)were selected to construct cross com‐binations with LSW2018(P1),and the populations of F_(1),F_(2),F_(3),aBC_(1) and bBC_(1) were analyzed.The results indicated that dwarf trait was controlled by a pair of dominant genes,plant height has major gene-polygenic genetic effect,and there is no cytoplasmic effect.

关 键 词：甘蓝型油菜 LSW2018 矮缩性状 遗传 显性基因 

分 类 号：S565.4[农业科学—作物学]